Created apollo-federation.mdx

[Namyts]

I struggled using Graphql-shield with an Apollo Federation gateway. Due to my fallbackRule being set to deny, the endpoints required by Apollo Federation were blocked. Couldn't find any documentation for this issue, but I found a few unanswered questions on Stack Overflow. I would have appreciated seeing something like this earlier, so wrote this to help others with this common(?) problem

[vercel[bot]]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/maticzav/graphql-shield/BirALucEJN2n9adcbuLq9g4jLDJs
✅ Preview: https://graphql-shield-git-fork-namyts-patch-1-maticzav.vercel.app

[elafifi]

I have the same problem when need to resolve values from other subgraph

[elafifi]

how i can apply these fixes in my local project. can any one help me ?

[Namyts]

how i can apply these fixes in my local project. can any one help me ?

https://graphql-shield-git-fork-namyts-patch-1-maticzav.vercel.app/docs/advanced/apollo-federation - This is what I wrote to be added to the documentation. If you think it could be written more clearly, feel free to make some more edits. I also gave this answer here

[elafifi]

i have tried this solution but not working with me. ===> { export const permissions = shield({ Query: { _service: allow, }, _Service: { sdl: allow } },{ fallbackRule: deny, debug: true, allowExternalErrors: true, }); }

although i have fallbackRule: true, subgraph can't resolve value from another one

[Namyts]

although i have fallbackRule: true, subgraph can't resolve value from another one

If you set fallbackRule to allow and it still doesn't work, the problem probably isnt with graphql-shield... The fix I've documented was to allow apollo's introspection to work. Maybe try creating a Stack Overflow question with your problem in more detail to see if someone can figure it out :)

You could also try allowing the other values I mentioned in my documentation addition, but I am thinking your problem might be unrelated since this works completely fine for me

[Namyts]

@maticzav - Could you merge my documentation additions please?

[elafifi]

when i remove graphql shield middleware the problem solved so it is shield problem

[zolero]

Man I've been struggling with this for almost one day. This library is shit. Just use graphql-middleware.

[Namyts]

Man I've been struggling with this for almost one day. This library is shit. Just use graphql-middleware.

I've switched to @graphql-authz since this post was made. Similar logic is required to allow the endpoints, but works fine for me...

[elafifi]

i have solved the problem and all is worked fine with me